But researchers at Albert Einstein College of Medicine in New York have pinpointed one reason for Tauber's longevity: her DNA. Examining the genes of Tauber and 350 other Ashkenazi Jews who are nearing age 100, Nir Barzilai and his colleagues have identified three genes that appear to promote long life by protecting against the diseases of old age.

FORBES: Researchers are unlocking the mysteries of aging.